Question

Find the solution to the system
5x+4y=-34 and y=3x

Answer 1

Answer:

x = -2 ; y = -6

Step-by-step explanation:

Let y = 3x be eqn.1

So putting eqn.1 in 5x + 4y = -34 gives ,

$5x + 4y = - 34$

$= > 5x + 4(3x) = - 34$

$= > 5x + 12x = - 34$

$= > 17x = - 34$

$= > x = \frac{ - 34}{17} = - 2$

Putting the value of x in eqn.1 gives :-

$y = 3x = 3 \times ( - 2) = - 6$